Reality TV star Jade Goody is entering the Celebrity Big Brother house.
Host Davina McCall said: "Jade's back - but this time she has brought the family."
Jade, 25, a former Big Brother contestant, will be joined by her mother Jackiey Budden, 48, and boyfriend Jack Tweedy, 19.
They will join film director Ken Russell, singer Jermaine Jackson and Bollywood star Shilpa Shetty in the main house.
The rest of the housemates - columnist Carole Malone, actress Cleo Rocos, rocker Donny Tourette, ex-Miss Great Britain Danielle Lloyd, actor Dirk Benedict, former Steps singer Ian 'H' Watkins, former S Club 7 singer Jo O'Meara and singer Leo Sayer - have moved into less luxurious surroundings.
Davina added: "They will be moving into a life of grime and servitude."
Not all the housemates will be surprised by the new arrivals. Some of the celebrities had been speculating about twists on the show.
"There's going to be a cat amongst the pigeons soon," Ian said. Donny replied: "It's Jade Goody, innit?", while Jo predicted "we're going to get separated".
Cleo became the clear 4/1 favourite to win Celebrity Big Brother, bookmakers Ladbrokes said. The 44-year-old began the day as an 8/1 shot, but was quickly backed to 4/1 odds.
Support for "any other" late entry's hopes evaporated as punters heard rumours of Jade's arrival, the spokesman added.
Davina announced: “Earlier today Big Brother told the housemates to pack their bags.
“They’re going to find out that some of them will be moving next door.”
Walking round the secret house, Davina said: “Eight of the housemates will move in here, next door, and become servants … (to) Jade, her family and the remaining housemates.”
She said of the new quarters: “It’s absolutely filthy.”
Going live to the main house, Big Brother told the housemates to decide between themselves who would stay and who would go.
The group allowed Ken, Jermaine and Shilpa to remain in the lap of luxury, while the rest went next door.
Danielle said she was “looking forward” to the move, but Carole said: “Don’t be excited, it’s going to be hell. Oh, look at the filth and squalor already.”
Back in the main house, Shilpa sat crying with her head in her hands, but in the new quarters the excited housemates cheered and hugged each other.
Carole added: “At least Ken’s not here – no snoring”.
Hearing the noise of the crowd, the group guessed that it meant that Jade was coming in.